Stadium: Court 5 Round: 27 Ground: Hardcourt outdoor
| Nonthaburi, Doubles M-ITF-THA-01A | 2019/05/22 08:15 | Ratiwatana Sa / Ratiwatana So v Congcar C / Ng H Y | 6-2,6-3 |
| Coupe Davis | 2019/04/06 03:00 | Ratiwatana Sa / Ratiwatana So v Alcantara F C / Mendoza J Z | 6-4,7-5 |
| Challenger Yokohama MD | 2019/03/02 05:00 | Echargui M / Mansouri S v Ratiwatana Sa / Ratiwatana So | 4-6,6-3,10-6 |
| Challenger Yokohama MD | 2019/03/01 05:35 | Fruttero J-P / Perez Sanz D v Ratiwatana Sa / Ratiwatana So | 5-7,6-7 |
| Challenger Yokohama MD | 2019/02/26 05:55 | Hazawa S / Tajima N v Ratiwatana Sa / Ratiwatana So | 2-6,6-3,5-10 |
| Bangkok II, Thailand, Doubles | 2019/02/21 08:30 | Lopez Perez E / Moriya H v Ratiwatana Sa / Ratiwatana So | 6-3,6-2 |
| Bangkok II, Thailand, Doubles | 2019/02/20 10:00 | Ratiwatana Sa / Ratiwatana So v Naen-Udorn C / Saimongkol P | 6-1,6-0 |
| Bangkok, Thaïlande, Doubles | 2019/02/13 09:00 | Balaji N. S / Kadhe A v Ratiwatana Sa / Ratiwatana So | 6-1,6-3 |
| Nonthaburi, Doubles M-ITF-THA-01A | 2019/05/21 10:15 | Kerdlaphee K / Kovapitukted P v Agarwal R / Stevenson K | 4-6,4-6 |